Highly durable hydrophobic coatings and methods - Patent Review 6743516

WikiPatents - Community Patent Review

Create Free Account | License or Sell Your Patent | WikiPatents Marketplace | WikiPatents Blog

counter customizable free hit

Highly durable hydrophobic coatings and methods

United States Patent

6743516

Link to this page

http://www.wikipatents.com/6743516.html

Inventor(s)

Murphy; Nestor P. (Monroe, MI); Petrmichl; Rudolph H. (Ann Arbor, MI)

Abstract

Substrates have a hydrophobic surface coating comprised of the reaction products of a chlorosilyl group containing compound and an alkylsilane. Most preferably the substrate is glass. In one preferred form of the invention, highly durable hydrophobic coatings may be formed by forming a silicon oxide anchor layer or hybrid organo-silicon oxide anchor layer from a humidified reaction product of silicon tetrachloride or trichloromethylsilane, followed by the vapor-deposition of a chloroalkylsilane. Such a silicon oxide anchor layer will advantageously have a root mean square surface roughness of less than about 6.0 nm (preferably less than about 5.0 nm) and a low haze value of less than about 3.0% (preferably less than about 2.0%). Another embodiment of the present invention include the simultaneous humidified vapor deposition of a chlorosilyl group containing compound and a chloroalkylsilane. Specifically, in certain preferred embodiments, the simultaneous vapor deposition onto a glass substrate of silicon tetrachloride (SiCl.sub.4) and dimethyldichlorosilane (DMDCS) results in a hydrophobic coating comprised of cross-linked polydimethylsiloxane (PDMSO), which may then be capped with a fluoroalkylsilane (FAS). The cross-linked PDMSO layer may be formed on the surface of the glass substrate, or a silicon oxide anchor layer may be deposited under the cross-linked (PDMSO) layer. SiCl.sub.4, trimethylchlorosilane (TMCS), trichloromethylsilane and combinations of these silanes therein may also be simultaneously vapor deposited onto a substrate surface so as to achieve hydrophobic coatings of exceptional durability.

References Submit all comments and votes

Submit all comments and votes

*references marked with an asterisk below are user-added references

U.S. References

Add a new US reference:
[Vote on relevancy & make comments] [Display results only]
Reference	Relevancy	Comments	Reference	Relevancy	Comments
1676	Your vote accepted [0 after 0 votes]		3808027	Your vote accepted [0 after 0 votes]
3637416	Your vote accepted [0 after 0 votes]		6245387 Hayden 427/341 Jun,2001	Your vote accepted [0 after 0 votes]
6136444 Kon Oct,2000	Your vote accepted [0 after 0 votes]		5973055 Michaud 524/462 Oct,1999	Your vote accepted [0 after 0 votes]
5919296 Be 106/287.14 Jul,1999	Your vote accepted [0 after 0 votes]		5873931 Scholz 100/13 Feb,1999	Your vote accepted [0 after 0 votes]
5851674 Pellerite Dec,1998	Your vote accepted [0 after 0 votes]		5846279 Nomura 65/30.1 Dec,1998	Your vote accepted [0 after 0 votes]
5841931 Foresi 385/131 Nov,1998	Your vote accepted [0 after 0 votes]		5840252 Giertych Nov,1998	Your vote accepted [0 after 0 votes]
5837644 Nakanishi Nov,1998	Your vote accepted [0 after 0 votes]		5800916 Yoshino Sep,1998	Your vote accepted [0 after 0 votes]
5763091 Kawata 428/428 Jun,1998	Your vote accepted [0 after 0 votes]		5723172 Sherman 427/109 Mar,1998	Your vote accepted [0 after 0 votes]
5693236 Okumura 216/7 Dec,1997	Your vote accepted [0 after 0 votes]		5691011 Newsham 428/1.31 Nov,1997	Your vote accepted [0 after 0 votes]
5688864 Goodwin 524/858 Nov,1997	Your vote accepted [0 after 0 votes]		5665424 Sherman 427/109 Sep,1997	Your vote accepted [0 after 0 votes]
5635246 Ogawa 427/341 Jun,1997	Your vote accepted [0 after 0 votes]		5599893 Asai 528/12 Feb,1997	Your vote accepted [0 after 0 votes]
5599625 Wirth 428/391 Feb,1997	Your vote accepted [0 after 0 votes]		5596061 Berger 528/26 Jan,1997	Your vote accepted [0 after 0 votes]
5584917 Kijima Dec,1996	Your vote accepted [0 after 0 votes]		5583896 Hirose 376/195 Dec,1996	Your vote accepted [0 after 0 votes]
5580606 Kai 427/164 Dec,1996	Your vote accepted [0 after 0 votes]		5580605 Ogawa 427/155 Dec,1996	Your vote accepted [0 after 0 votes]
5543171 Shores 427/177 Aug,1996	Your vote accepted [0 after 0 votes]		5525660 Shiono 524/268 Jun,1996	Your vote accepted [0 after 0 votes]
5492762 Hirai 428/447 Feb,1996	Your vote accepted [0 after 0 votes]		5476717 Floch Dec,1995	Your vote accepted [0 after 0 votes]
5473037 Itoh 528/12 Dec,1995	Your vote accepted [0 after 0 votes]		5463010 Hu 528/25 Oct,1995	Your vote accepted [0 after 0 votes]
5437894 Ogawa 427/535 Aug,1995	Your vote accepted [0 after 0 votes]		5435839 Ogawa 106/10 Jul,1995	Your vote accepted [0 after 0 votes]
5415927 Hirayama 428/307.3 May,1995	Your vote accepted [0 after 0 votes]		5413865 Nakamura 428/432 May,1995	Your vote accepted [0 after 0 votes]
5389427 Berquier Feb,1995	Your vote accepted [0 after 0 votes]		5383354 Doris 73/105 Jan,1995	Your vote accepted [0 after 0 votes]
5380585 Ogawa 428/333 Jan,1995	Your vote accepted [0 after 0 votes]		5372851 Ogawa 427/255.7 Dec,1994	Your vote accepted [0 after 0 votes]
5328768 Goodwin Jul,1994	Your vote accepted [0 after 0 votes]		5320875 Hu 427/493 Jun,1994	Your vote accepted [0 after 0 votes]
5300239 Ozaki 8/127.1 Apr,1994	Your vote accepted [0 after 0 votes]		5294252 Gun 106/287.13 Mar,1994	Your vote accepted [0 after 0 votes]
5234718 Mino 427/352 Aug,1993	Your vote accepted [0 after 0 votes]		5071709 Berquier Dec,1991	Your vote accepted [0 after 0 votes]
4997684 Franz 427/384 Mar,1991	Your vote accepted [0 after 0 votes]		4983459 Franz 428/410 Jan,1991	Your vote accepted [0 after 0 votes]
4946903 Gardella, Jr. 525/326.4 Aug,1990	Your vote accepted [0 after 0 votes]		4847160 Munz 428/447 Jul,1989	Your vote accepted [0 after 0 votes]
4838946 Yamaguchi Jun,1989	Your vote accepted [0 after 0 votes]		4753827 Yoldas 427/387 Jun,1988	Your vote accepted [0 after 0 votes]
4711820 Arkles 428/429 Dec,1987	Your vote accepted [0 after 0 votes]		4567221 Maruyama 524/436 Jan,1986	Your vote accepted [0 after 0 votes]
4547432 Pitts 428/448 Oct,1985	Your vote accepted [0 after 0 votes]		4539061 Sagiv 156/278 Sep,1985	Your vote accepted [0 after 0 votes]
4478909 Taniguchi 428/331 Oct,1984	Your vote accepted [0 after 0 votes]		4301197 Franz 427/353 Nov,1981	Your vote accepted [0 after 0 votes]
4274856 Frey 65/24 Jun,1981	Your vote accepted [0 after 0 votes]		4263371 Franz 428/432 Apr,1981	Your vote accepted [0 after 0 votes]
4263350 Valimont 427/352 Apr,1981	Your vote accepted [0 after 0 votes]		4166891 Elliott 525/153 Sep,1979	Your vote accepted [0 after 0 votes]
4118540 Amort 428/447 Oct,1978	Your vote accepted [0 after 0 votes]		5308705 Franz 428/421 Dec,1969	Your vote accepted [0 after 0 votes]
[Vote on relevancy & make comments] [Display results only]

Foreign References

Other References